diff options
Diffstat (limited to 'Year_2/Databases/university_marks_ex3.xquery')
| -rw-r--r-- | Year_2/Databases/university_marks_ex3.xquery | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Year_2/Databases/university_marks_ex3.xquery b/Year_2/Databases/university_marks_ex3.xquery new file mode 100644 index 0000000..dd1f5b8 --- /dev/null +++ b/Year_2/Databases/university_marks_ex3.xquery @@ -0,0 +1,15 @@ +<ex3> +{ +let $f := doc("university_marks.xml") +let $courses := distinct-values($f//materia) + +for $course in $courses +return <course area="{$course}"> + { + for $data in $f//libretto + where $data//esami//esame//materia/text()=$course + return <student>{$data//studente/@matricola}</student> + } + </course> +} +</ex3> |